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EP0476426A1
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Preparation of epoxysilicon compounds using rhodium catalysts
Assignee: General Electric Co
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Filing: 1991-09-04
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Granted: —
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Expires: 2011-09-04
Abstract
Abstract A method for making an epoxyfunctional organosilicon compound is provided, comprising the step of reacting at a temperature of from about 25° to about 100°C a mixture comprising (A) an ethylenically unsaturated epoxide; (B) an organohydrogenpolysiloxane or organohydrogensilane; and (C) a rhodium complex catalyst selected from the group consisting of: (i) RhX₃(SR₂)₃; (ii) RhX₃ · xH₂O; (iii) [RhX(norbornadiene)]₂; (iv) RhX(CO)(R₃P)₃; (v) RhX(R₃P)₃; and (vi) [RhCl(cyclooctadiene)]₂; wherein X is a halogen atom, x is a number equal to 3 or 4, and R is an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl radical or the R 1 3 SiQ- group in which Q represents a divalent aliphatic hydrocarbon radical having from 1 to 6 inclusive carbon atoms and R¹ represents an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl radical or a (CH₃)₃Si- radical.
Inventors
- 👤 James Vincent Crivello
- 👤 Ming-Xin Fan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:44
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/08; C08G77/38; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876; C07F7/0878; C07F7/0879; C08L; C08L83/00; C08L83/04; C08L83/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
A method for making an epoxyfunctional organosilicon compound, comprising the step of reacting at a temperature of from about 25° to about 100°C a mixture comprising: (A) 1 part by weight of an ethylenically unsaturated epoxide; (B) from about 0.5 to about 400 parts by weight based on (A) of an organohydrogenpolysiloxane or organohydrogensilane; and (C) from about 1 to about 5000 parts per million based on (A) of a rhodium complex catalyst selected from the group consisting of: (i) RhX₃(SR₂)₃; (ii) RhX₃ · xH₂O; (iii) [RhX(norbornadiene)]₂; (iv) RhX(CO)(R₃P)₃; (v) RhX(R₃P)₃; and (vi) [RhCl(cyclooctadiene)]₂; wherein X is a halogen atom, x is a number equal to 3 or 4, and R is an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl radical or the R 1 3 SiQ- group in which Q represents a divalent aliphatic hydrocarbon radical having from 1 to 6 inclusive carbon atoms and R¹ represents an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl or a (CH₃)₃Si- radical.
Claim 2
Dependent Claim
35 words
A method according to claim 1 wherein component (A) is an ethylenically unsaturated epoxide selected from the group consisting of allyl glycidyl ether, methallyl glycidyl ether, 1-methyl-4- isopropenyl cyclohexeneoxide; 2,6-dimethyl-2,3-epoxy-7-octene; 1,4-dimethyl-4-vinylcyclohexeneoxide; 4-vinylcyclohexeneoxide; vinylnorbornenemonoxide, and dicyclopentadienemonoxide.
Claim 3
Dependent Claim
11 words
A method according to claim 2 wherein component (A) is 4-vinylcyclohexeneoxide.
Claim 4
Dependent Claim
18 words
A method according to claim 1 wherein component (B) is a linear hydride polysiloxane or linear hydride silane.
Claim 5
Dependent Claim
11 words
A method according to claim 4 wherein component (B) is 1,1,3,3-tetramethyldisiloxane.
Claim 6
Dependent Claim
18 words
A method according to claim 1 wherein component (B) is a cyclic hydride polysiloxane or cyclic hydride silane.
Claim 7
Dependent Claim
12 words
A method according to claim 6 wherein component (B) is hydride cyclotetrasiloxane.
Claim 8
Dependent Claim
18 words
A method according to claim 1 wherein the rhodium catalyst is RhCl(Ph₃P)₃, wherein Ph is a phenyl group.
Claim 9
Dependent Claim
27 words
A method according to claim 1 wherein component (B) is present in an amount within the range of from about 0.5 to about 100 parts by weight.
Claim 10
Dependent Claim
31 words
A method according to claim 9 wherein component (B) is present in an amount within the range of from about 0.75 to about 5.0 parts by weight based on component (A).
Claim 11
Dependent Claim
32 words
A method according to claim 1 wherein the rhodium catalyst is present in an amount within the range of from about 1 to about 500 parts per million based on component (A).
Claim 12
Dependent Claim
31 words
A method according to claim 11 wherein the rhodium catalyst is present in an amount within the range of from about 10 to about 50 parts per million based on (A).
Claim 13
Dependent Claim
148 words
An addition curable composition comprising: (A) an ethylenically unsaturated epoxide; (B) from about 0.5 to about 400 parts by weight based on (A) of an organohydrogenpolysiloxane or organohydrogensilane; and (C) from about 1 to about 5000 parts per million based on (A) of a rhodium complex catalyst selected from the group consisting of: (i) RhX₃(SR₂)₃; (ii) RhX₃ · xH₂O; (iii) [RhX(norbornadiene)]₂; (iv) RhX(CO)(R₃P)₃; (v) RhX(R₃P)₃; and (vi) [RhCl(cyclooctadiene)]₂; wherein X is a halogen atom, x is a number equal to 3 or 4, and R is an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl radical or the R 1 3 SiQ- group in which Q represents a divalent aliphatic hydrocarbon radical having from 1 to 6 inclusive carbon atoms and R¹ represents an alkyl radical having from 1 to 8 inclusive carbon atoms, aryl, aralkyl, or alkaryl radicalor a (CH₃)₃Si- radical.
References Cited (Backward Citations)
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